Stitched buttonhole



Nw. .10z 1925- 2 SheetsSheet 2 INVENTOR amb TTORNEY lGo in the final stitches are. superposed upon kthe i initial stitches in line with and beyond one end of the buttonhole-slit 14. Sucha but-v needles 15, 16, carrying, respectively, .theV

upper threads 2, 3, anda pair of alternately acting loopers 17, 18, carrying, respectively, the under threads`8,9, and operatingv in con junction'with the loop-detainers 19, 20.

Referring to Fig. 5, the needles 15, 1,6,V

have penetrated the iabric'l and are passing theirl respective loops through the loop 11 of under threadf'9 held spread by the detainer 20. Y The detainer withdraws and; as the needles rise, Fig. 6, their loops 4', 6',

are seized by the looper l17 which projects a loop l0 of under thread, Fig. 7, lthrough the upper thread loops 4', 6'.

vThe loop detainer 19 advances and seizes ythe'loop 1Q of under thread after which the, looper 17 withdraws, leaving its loopy on the detain'er 19, Fig. 8,. which latter holds thev loop lOin ,position `for entry by the'` needles;

15, 16, on their next descent, Fig. 9'. i

A As soonas `the loop 10 is entered by thel needles, the detainer 19 isk withdrawn to shed such loop. As the needles rise, Fig.` 10, they throw out loops 5', 7', which are seized by the'looper 18 carrying kthe under ,thread 9, a loop 1 1 of which'thread is thereby passed through .the upper thread'loops'v", .7

Fig. 11.y .The loop 11 isney't seized bythe detainer 2O fand presented tov the'. needles 15, 16, as shown in Fig. 5. v This completes a cycle of operations. In sewing a corded fly-bar button-hole embodying the -invention, some of the multiplicity of closely spaced. upper thread loops, resulting from the use ofl twofzigzag upper threads,.usually penetrate the cord at the barredend of the buttonhole and'thereby anchor the cordall the more securely'. 'f v kIt has beenproposed to V'increase Vthe body and strength of abuttonhole in knit goods by sewing a plurality of times around the hole, but thisexpedient is time consuming and the finished buttonhole is unattractive, AccordingA to the present .invention'fja shapely buttonhole of unusualbody strength is producedv by an oversearnvpa'ssing once only aroundthe button'hole. `i

The presentfoverseam, -on a H somewhat larger scale, may be used for joining the abutted edges of cut knit goods, asshown in Figs. Brand 4, wherein au, y, represent separate piecesofknit goods having their cut edges abutted `at the line .e substantially centrally of the oVerSeam. In this form of the inventiontheloops 4', 7', of the .two i outer rows of lupper thread loops `are ani .'chored vdeeply in the pieces 00,y, and're'sislt strainstendinjg' ltolseparate suchlpeces'ywhile objectionably.

a plurality oiV upper threads;

the'loops "5', 6', ci; theltiwo4 rows are formed relatively near yto ythe abutted cut edges of the pieces y, and bind down the loops 10, 11 of -under-threadwhich cross the line of division a and tie'together-thedeeply T anchored loops 4', 7'. The inner Tvrows of loops 5', 6', in conjunction with the loopsV v10, 11, securely bind down the cut threads of the pieces w, g/,along the line of divisione so that such cut threadswill not stick up It ywillfbe noted that the" present overseain is not la duplex seam, i.` 'e..A

not niadeup 'of'.` two separate and distinct seainssewed one over the other andpis'notdivisible iii-to lsimpler ycomponent yseams each complete initself, but constitutes one4 integral concatenated thread-loop structure. Having thus set forth Ithe nature of the invention, what I claim herein is l`. A stitched`l butto'nhole'"comprising 'a i.' fabric having an overseain including zupper v,

thread means formed` into four laterally spaced Vrows of loops passing through Vto the under face of the fabric', and apairjofrun; der threads extendingalon'g the margins Lo the overseain andjforrnevdl into loops' eachiof 1 which passes through a loop of upper thread inl each of vthe two adjacentr rows Vand embracesaloop of upperthreadin eachof'the two ieinoter'ows. "l

(.2. iA stitched buttonhole" V'cbinprising Y a fabric'having-an overseani including' a pair Qfupper zigzag threadsv disposed in overl'appingzones andiiormed into ourrows of loops passing through to the under `face of the fabric, and a pairof underthreads extending along the [margins of thev overseain alid formed into loops eachof which passes through a loop 'of 'upper .threadin each of the two adjacent rows and embraces ,a loop of upper thread infeachv oi Vthe two" remote,

` 3. A ystitched buttonhole" comprising va fabric having van overseain "o'rmedwith' a plurality of upper threadsdisposed in zig-v zag arrangement in ymin-coincident *zones and lrai'fingY loops ypassing through the fabric,

and under thread ,means orinedjinto keying loopsfefach of V,whichpasses through loops 'of 4; Aifstit'hedv buttonhole comprising a fabric. having an overseam" formed' with a plurality of upperlth'reads disposed in zigzag arrangement i'n noncoincident zones and having loops 1passing through the'fabric, and under threadineans formed into keying loops which are concatenated with the loops of the upper'threads'eacli loop of under thread passingthrough'a loop of each upper thread and vembiacing a succeeding loop/oi each upper thread.

5. A.' stitched buttonhole#comprising a fabric having an overseam formed with a plurality of upper threads disposed in 'zigzag arrangement in F non-coincident zones and having loops passing through the fabric, and a pair of under threads formed into loops which are concatenated with the loops of the upper threads, each loop of each under thread passing through a loop of each upper thread and embracing a succeeding loop of each upper thread.

6. A. stitched buttonhole comprising a fabric having an overseam formed with a plurality of upper threads disposedin zigzag arrangement in overlapping zones and having loops passing through and keyedat the under face of the fabric, and 'a top cord disposed in the overlapping portion of said zones and bound down by said upper threads.

7. A stitched buttonhole comprising a fabric having an overseam formed with a plurality of upper threads disposed in zigzag arrangement in overlappingV Zones and having loops passing through the fabric, a pair of under threads formed into4 loops which are concatenated with the loops of upper threads, and a bottom cord bound downv by said under thread loops, 'one cord end andthe'final stitches of the overseani over-l lapping the other cord end and the initial stitches to form a fly-bar at one end ofthe buttonhole. n v 8. A stitched buttonhole comprising av loosely knitted lfabric having an overseain formed with a plurality of upper threads disposed in zigzag arrangement in non-co.V incident zones and having loops' passingA through the fabric, and a pair of underv threads formed into loops Which are con. Y y

i EDWARD B. ALLEN. 

